Automated Horizontal stretch wrapping machine E series

🛠️ Summary

The E-300 and E-400 horizontal stretch wrapping machines automate spiral film wrapping for aluminium profile bundles with a 10 x 10 cm cross-section, 3–6 m lengths, and 10–20 kg bundle weights; the E-300 handles 3 m bundles while the E-400 extends the same rotating-film-carriage principle to 6 m bundles with PU-covered power rollers.

This technical evaluation documents how a mid-size aluminium extrusion plant replaced manual stretch wrapping with an automated horizontal wrapper. It covers the manual-wrapping bottleneck, the machine’s operating principle, confirmed and unconfirmed technical parameters, expected performance versus manual methods, and a purchase checklist. All quantitative figures are labelled as confirmed (from the supplier quotation), typical (industry range), or illustrative (estimate). Unverified values must be confirmed with the supplier before purchase.

Supplier reference videos (from the original quotation):

• E-300 / E-400 horizontal stretch wrapper:

• E-400 with PU-covered roller conveyor:

🏗️ Industry Pain Point

Manual stretch wrapping of a 6 m aluminium profile bundle takes 4–6 minutes and roughly 2–3 kg of film per bundle, which makes wrapping the single slowest step in many extrusion plants — a 200-bundle day can consume 13–20 labour hours before a single pallet ships.

In mid-size aluminium extrusion facilities, profile bundles of 3 m and 6 m lengths, each a 10 x 10 cm square weighing 10–20 kg, are produced far faster than they can be hand-wrapped. Two workers are required per bundle: one holds the load steady while the other walks its full length, spinning stretch film around it six to seven times, then flips the bundle for a second pass.

Key Point: This repetitive walking pattern strains shoulders and backs. Wrapping speed drops by mid-afternoon, and film tension varies from worker to worker. The result is loose film on some bundles, snagged corners or peeled edges on others, and costly re-wrapping after transit damage.

A standard pallet wrapper cannot solve this problem. A 6 m long, 10 cm wide bundle cannot rotate inside a tower-style machine designed for palletised loads. The bundle’s geometry requires a fundamentally different wrapping principle — one that rotates the film around the load rather than rotating the load.

📈 Solution Mechanism

The E-series horizontal stretch wrapping machine wraps long bundles by rotating a film carriage around the load’s longitudinal axis, so a stationary 10 x 10 cm aluminium profile bundle moves forward on rollers while stretch film spirals around it — the E-300 handles 3 m lengths and the E-400 extends to 6 m.

Unlike a pallet wrapper, where the load rotates around a vertical axis, the horizontal wrapper keeps the bundle stationary and rotates the film carriage. A ring-shaped carriage holds the film roll and spins around the bundle as the bundle feeds forward through the machine. The result is a continuous spiral wrap along a long, thin load — the same geometry used for extruded profiles, tubes, and linear building products.

Key Point: The E-400 quotation includes flexible roller tables before and after the wrapper, so one operator can stage the next bundle while the current one is being wrapped.

In this plant’s evaluation, the supplier initially recommended the E-300 for 3 m bundles. Once the team confirmed that 6 m bundles also ran on the line, the recommendation shifted to the E-400 with PU-covered power conveyors. “PU-covered” means the steel rollers that carry the bundle are coated in polyurethane — a soft, wear-resistant polymer that cushions the load and protects anodised aluminium surfaces from scratches. Bare steel rollers would risk cosmetic damage to the profile finish.

A PLC — programmable logic controller, a ruggedised industrial computer that automates machine sequences — governs the film overlap ratio, film tension, and the number of extra reinforcement passes applied at each end of the bundle. Head-and-tail reinforcement is programmed separately, keeping the bundle tight when a fork truck lifts it from the middle. Changeover between 3 m and 6 m bundles is a touchscreen selection, not a tooling change.

🛡️ Implementation Details & Parameters

Based on the supplier quotation, the E-400 is specified for aluminium profile bundles with a 10 x 10 cm cross-section, 3–6 m length, and 10–20 kg weight, and it ships with PU-covered power rollers plus flexible roller tables before and after the wrapper — confirm the final layout drawing with the supplier.

Parameters confirmed in the source enquiry:

• Bundle cross-section: 10 x 10 cm

• Bundle length: 3 m (E-300) or 3–6 m (E-400)

• Bundle weight: 10–20 kg, depending on profile length

• Conveyor type: PU-covered rollers, power-driven (E-400) — polyurethane-coated steel rollers that prevent scratching of the aluminium finish

• Infeed/outfeed: flexible roller table, included in the E-400 quotation

Parameters to confirm before ordering:

Illustrative operating scenario (composite example, not a verified case study): On the first morning the E-400 ran, a senior operator fed a 6 m bundle onto the infeed table. The bundle slid forward on the PU-covered rollers without scraping — the plant manager’s key concern, since bare steel rollers would have scratched the anodised finish. The operator set the film overlap on the PLC touchscreen, pressed start, and the film carriage spun around the stationary bundle while the conveyor pulled it through. In about 45 seconds, the bundle emerged with an even film layer and reinforced ends. The previous manual method took roughly four minutes per bundle.

Floor-space planning follows bundle length. With infeed and outfeed tables, a 6 m profile line needs roughly 8–10 m of linear space (typical range) — verify with the supplier’s layout drawing before ordering.

Key Point: The PU covering on the rollers protects the aluminium surface finish. Do not accept bare steel rollers for anodised profiles.

Operator training takes about half a day for one operator, per typical machine handover practice. No special tools or dies are required for length changeover.

⚙️ Performance Comparison: Estimated vs. Confirmed

For this machine class, wrapping time per 6 m bundle typically drops from 4–6 minutes (manual) to 40–60 seconds (automated), and film usage is typically reduced by 15–30% — these are typical industry ranges, not confirmed production data from this plant, and must be verified against your own bundle dimensions.

The plant in this evaluation has not published production data. The table below separates confirmed specifications (from the supplier quotation) from estimated performance figures (typical industry ranges or illustrative assumptions).

The economic case is straightforward. One operator instead of two, five to six times faster wrapping, and consistent film tension on every bundle. For a plant shipping 200 bundles per day (illustrative assumption), estimated manual labour is 13–20 person-hours per day; with the E-400 at 40–60 seconds per bundle, this drops to roughly 2.5–3.5 person-hours of supervised machine time — a saving of 10–17 labour hours daily. At a fully loaded labour rate of €25/hour (illustrative), that equals roughly €250–425 per day, or €65,000–110,000 per year on a 260-working-day calendar. These figures are planning estimates, not supplier guarantees.

🛠️ Purchase Decision Checklist

Confirm the bundle length range first: the E-300 fits plants that only wrap 3 m bundles, while the E-400 covers mixed 3–6 m production with PU-covered power rollers — then verify that the quotation includes flexible roller tables, electrical data, cycle-time testing, and layout drawings in writing.

• [ ] Confirm the full bundle length range. If every bundle is 3 m, the E-300 fits. If any bundle is 6 m, specify the E-400 with PU-covered power rollers.

• [ ] Send product photos to the supplier before the final quotation. The original enquiry included a request for profile pictures; confirm this requirement still applies.

• [ ] Confirm in writing that the quotation includes the flexible roller tables before and after the wrapper. In the supplied quotation, the E-400 price includes them.

• [ ] Check the local power supply and voltage against the machine specification; the supplied quotation does not list electrical data.

• [ ] Ask for a cycle-time video with your exact bundle size. The reference videos show typical 3–6 m profile bundles, not your specific product.

• [ ] Request a layout drawing to verify floor-space requirements, including infeed and outfeed tables.

🏗️ Figures to Confirm

Every assumed value in this evaluation — manual wrapping time, film weight, automated cycle time, film savings, floor space, training time, film width, ring speed, overlap ratio, end passes, power supply, and labour rate — is listed with a verification action; none should be treated as a confirmed specification.

Methodology note: All quantitative figures in this article that are not explicitly marked as “confirmed in quotation” are illustrative estimates or typical industry ranges. No production data from a specific installation was used. Figures are provided for budgeting and comparison only; verify every value against your own line conditions and a formal supplier quotation before making a purchase decision.

🛡️ Compliance Note: This equipment is designed to meet ISO and ASTM requirements. Verify with the manufacturer.